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Composite habitat system for improving water quality of high-flow-velocity high-sand-content river channel

A high-velocity, river-channel technology, applied in the field of composite habitat systems, can solve the problems of frequent replacement of aquatic plants in artificial aquatic plants, reduce the processing capacity of the ecosystem, and limited water flow processing capacity, so as to improve biodiversity, increase the scope of contact, The effect of improving the water quality of the river

Active Publication Date: 2021-08-31
葛洲坝集团生态环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film-hanging unit of the present invention can slow down the flow velocity of the river to a certain extent, contribute to the settlement of larger suspended matter such as silt and particulate matter in the water body, and initially settle the particulate matter in the upstream water; the patent scheme has the following defects: (1) The artificial aquatic plant group has a certain adsorption capacity, but the adsorption function is relatively simple, and it can only simply treat the sediment, and the ability to treat the water flow with various pollutants is limited; (2) The artificial aquatic plant group needs to replace the aquatic plants frequently, which is inconvenient to maintain. High cost; (3) The artificial water plant group and the ecosystem unit are set separately, which reduces the processing capacity of the ecosystem

Method used

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  • Composite habitat system for improving water quality of high-flow-velocity high-sand-content river channel
  • Composite habitat system for improving water quality of high-flow-velocity high-sand-content river channel

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1 to Figure 2 As shown, a composite habitat system for improving the water quality of high-velocity and high-sand content rivers includes several permeable walls 2 perpendicular to the flow direction of the river, and several permeable walls 2 are arranged alternately on both sides of the river. One end of the permeable wall 2 is fixed to the bank 8 on one side of the river, and a microbial adhesion base system is arranged between the other end of the permeable wall 2 and the bank 8 on the other side of the river; There is a pre-purification zone 5, a transition zone 6, and an advanced treatment zone 7. The pre-purification zone 5 is set between the first permeable wall 201 and the second permeable wall 202, and the transition zone 6 is set in the second permeable wall. Between the wall 202 and the third permeable wall 203, the advanced treatment area 7 is set between the third permeable wall 203 and the fourth permeable wall 204; the microbial attachmen...

Embodiment 2

[0054] The difference between this embodiment and Embodiment 1 is that a composite habitat system for improving the water quality of high-velocity and high-sand content rivers is applied to a section in Guizhou City with a width of 20m, an average water depth of 2.2m, and a length of 10km. In the river channel with a speed of 2.5m / s, the layout form is as follows: the length of the permeable wall 2 is 10m, the width is 2m, and the layout spacing is 20m, which is 0.2m higher than the normal water level of the channel; the permeable wall 2 is filled with volcanic rock and clinoptilolite. The mass ratio is 1:3, the mass ratio of clinoptilolite to limestone is 3:1, and the particle size is about 50mm; the aperture of the gabion net 3 of the outer frame of the permeable wall 2 is 30×50mm; the layout of the microbial attachment base 9 The density is 6 plants / m 2 ; The planting densities of hydrilla and elodea in pre-purification zone 5 are 50 strains / m respectively 2 , 40 plants / m ...

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Abstract

The invention discloses a composite habitat system for improving the water quality of a high-flow-velocity high-sand-content river channel. The composite habitat system comprises a plurality of permeable walls perpendicular to the water flow direction of the river channel, wherein two adjacent permeable walls are respectively fixed on two opposite river banks of the river channel. The composite habitat system further comprises a front purification area, a transition area and an advanced treatment area which are sequentially arranged in the water flow direction of the river channel, wherein a microbial substratum system is used for carrying out front interception on silt in incoming water, the front purification area is used for carrying out front purification on the water quality of the incoming water, the transition area is used for carrying out intermediate transition on the incoming water so as to further reduce suspended matters, and the advanced treatment area is used for finally purifying the incoming water so as to thoroughly improve the river water quality and enhance the situation of high sand content. According to the invention, natural water flow can be changed into a Z-shaped flow state through the permeable walls, high-speed water flow is slowed down to form low-speed water flow, scouring effect on a river levee and a substrate is reduced, and pollutants in water are digested while water is permeated.

Description

technical field [0001] The invention relates to the field of river water quality restoration, in particular to a composite habitat system for improving the water quality of high-velocity and high-sand content rivers. Background technique [0002] With the increasing scarcity of water resources, especially to meet the increasing shortage of water resources for daily production and life, there have been more and more cases of citing and purifying water resources in rivers in recent years. Affected by factors such as the environment and human over-exploitation, the sediment content of river courses is generally high. Because the water in the river is mixed with a large amount of sediment and pollutants, it brings great difficulties to the work of treating drinking water. [0003] The main reasons for the high sediment content of the river are: the biomass of aquatic plants is low; the high-velocity water flow has a strong scouring effect on the embankment and the bottom; The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/32C02F3/34C02F2103/007
Inventor 徐恩兵
Owner 葛洲坝集团生态环保有限公司